Fountain pen



July 7, 1925;

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A. POL LAK l II Z .1:

FOUNTAIN PEN Filed Sept. 15, 1923 m I R M Q l ww L Patented July 7,1925,

v ITED STATES ABRAHAM POL AK, on NEWYYORK, 1:. 1,

PATENT 0mm,

assrenon ro SAMUEL KAnNnR'Qor' n nw FOUNTAIN PENJ' Application'filedSeptember 13, 1923. Serial N0. 8G2,3-77.

.rangements of parts hereinafter described,

and particularly pointed out in the claims.

One object of the invention is the production of a fountain pen whosemain barrel portions may be conveniently formed from sheet metal andreadily assembled. A further object of the invention is to provide noveland efficient means for securing the operating or filling-lever inposition without the use of rivets'or' the like, and a further purposeof the invention is to provide a novel leaf spring for engaging andcollapsing the ink-holding bag and exerting uniform pressure against aconsiderable length of same and also novel meansfor holding said springand applying the same to position.

The invention and satisfactory means for carrying the same into effectwill be fully understood from the detailed description hereinafterpresented, reference being had to the accompanying drawings, in which:

Fig. 1 is a central longitudinal-section through a. fountain-penembodying my invention, the ink-bag being shown in ex panded conditionand partly broken away;

Fig. 2 is a like View of the'saine, showing the bag as having beencollapsed by the means provided for that purpose;

Fig. 3 is a longitudinal section, partly broken away, through the barrelportions of the pen and illustrates the inner barrel portion carryingthe filling-spring as inserted part-way into the outer end of theouterbarrel portion and to aposition toreceive in depressed hearings orseats formed thereon,'the trunnionscarried by the operating orfilling-lever and which trunnions are at that point inserted downwardlythrough a cross-slot formed in the outer barrel portion and engage saidbearings or seats, preparatory to said trunnions on the further inwardmovementof said inner barrel mempartly within the outer barrlel or inher. being carried,.with said bearings, below solid portions of theouter barrel or to their final operative position shown inFigs. i1

and2;

Fig. 4 is a plan View of that portion of theouter barrel shown inFig. 3,this figure showing lthelongitudinal slot for accommodating theoperatingor filling-lever and the cross-slot for permitting thetrunnions on said lever. to be inserted downwardly to the bearings orseats provided for them .on the innerbarrelmember when said member isthe po;- sition shown in Fig.3,

Fig. 5 is a plan view ofthat portionof the inner barrel-member shownin-Fig. 5,

with the spring connected therewith, this figure showing thetwo'depressed seats or bearings for the trunnions on the operatinglever; I Fig. 6

is across-section, on a larger scale,

taken onthe dotted line 6 -6 of Fig. 8, show ing the trunnions on theoperating lever as having been lowered to reach the hearings or seats onthe inner barrel member when said member is in its.

. Fig. 7 is a crosssection, scale, taken on the dotted-line 7-7 of l ig.

2, the inner barrel'member then having been on an enlar ed partlyinserted position illustrated in Fig.3;-

1 Fig. 9 is-a detached perspective View of the filling-spring, and

Fig. 10 is a cross-section through the cap portion of the pen taken 1010of Fig. 1.

on the dotted line "In the drawings, 15 designatesthe main outer barrelof the pen, thisbarrel being preferably a sheet metal tube formed in oneside of its-rear portion with alongitudinal slot 16and having within itsforward end a suitable plug 17 to receive a' pen 18 and the forward endofthe. usual ink-bag 19, which extends rearwardly through the barrel tothe requisite distance, as shown, and is entirely closed exceptat itsforward end. The

Within rear endofthe barrel 15 is f slot 16 is formed at a suitablelocation bei inserted an auxiliary barrel member -21 which is open atits forward end and closed at its outer or rear end by a head 22, into'agroove around which, the outer edges of the member 21 are flangedas'means for securing said head and member together. When the barrelmember 21 is pushed home into the outer end of the barrel 15, or to theposition shown in Figs. 1 and 2, an annular enlargement of the outer endof the head 22 brings up against the outer end of the barrel 15 as astop to arrest the inward movement of the member 21, the annular edgesof said enlargement then lying flush with the outer surface of thebarrel 15.

The barrel member 21 has in its, upper side a long slot or opening 23,andconveniently near its forward or inner end said member 21* is formedat opposite sides of said slot with transverse depressions 2a which formbearings or seats for the trunnions25 extending transversely fromopposite'sides of the operating lever 26. When the barrel member 21 isslid into the barrel.

1-5, the slot or opening 23 moves along below the slot 16 in said barrel15-and the bearingrecesses 24 pass below the recesses or crossslot 20and thence move forwardly below solid portions of the barrel 15 atopposite ides of the forward end of the slot 16, as

hereinafter eXplained, -and as is shown in Figs. 1, 2 and 7.

The presser bar, numbered 27, at the upper side' of the ink-bag 19, isan elongated bar so as to engage a very considerable length of the bag19, as shown, and this bar is free at its outer or rear end and at itsinner end is secured by a rivet to the leaf spring 28, which is'above'and extends rearwardly beyond the bar 27, the rear end of thespring28 being curved downwardly and secured at its lower member 29below and by means of a loop 30 slit and pressed up from the rear lowerportion of the inner barrel member 21, as shown in Figs. 1, 2, 3 and 8.The loop 30, when pressed upwardly from the body of the barrel member21, receives below it the member 29 of the spring 28, and then when theloop 30 is pressed downwardly against said endof the spring-the springbecomes securely clipped within the'b'ar-re-l member 21. The spring 28is formed intermediate its ends with a longitudinal slot 31,'c'lea-rlyshown in Fig. :9, and this. slot-31,]when the parts are assembled, liespartly below and partly in advance of the forward end of the slot-16formed in the outer barrel 15, and said slot :31 'also lies below theforward end of the slet :28 in the-inner barrel member 21, as shown inFig. 5; In thenormalconditionof the bar-27 and spring 28, the body ofsaid I spring 28 is straight and the bar 27lies close iip againstthelower surface of the same, as shown in Fig. 9; this conditionisillustrated in Fig. 1 wherein it'may be seenth'at the presence of thespring 28 and bar 27- does not interfere with the insertion of an inkbag 19 of considerable length within the outer barrel 15 and innerbarrel member 21. The spring 28 is flexed to normally lie at the upperside of the inner barrel member 21, and remains in that position untilturned downwardly by pressure exerted against the bar 27 by means of theoperating lever 26 to depress said bar against the upper side of the bag19, the action of said lever being primarily against the bar 27 and'saidbar acting to draw the forward end of the spring 28 downwardly.

Thelever 26 is a small metallic oscillatory bar-lever having an outerexposed portion adapted to lie along the upper side of the barrel 15andto be turnedupwardly therefromby the user of the pen, and said lever26 has a lower portion 32 to engage the bar 27, as shown in Figs. 2 and3, and is provided with transverse trunnions 25 adapted to the hearingsor seats at formed on the inner barrel member 21, as hereinbeforeexplained. V r V The lower member 3201 the lever 26 when said lever isin its normal inoperative position shown in Fig. 1, lies withi-n'theslot 31 of the spring 28, and its length is then against the bar 27.-When the exposed portion of the lever 26 is turned upwardly from thebarrel 15, the lower member 32thereof is turned downwardly against thebar 27 and depresses said bar against the ink-bag 1-9,-as shown in Fig.2, for squeezing the air therefrom, so that when the lever 26 isrestored to its form-er inoperative'position, a suction may be createdwithin the bag which will draw in ink, according towell-known methods.The spring 28 carries-the bar 27,

said inner barrel member in that position having its hearings or seats24 directly be-' low the recessesor .cross-slotQO in the barrel 15. Whenthe parts are in this relation I introduce the lever 26 downwardlythrough the slot 16 of thebarrel 15and the slot 31' of the spring 28 andagainst the bar 27 and I cause the trunnions 25 to engage. the bearmgs.or seats-24 above referred to, and there'- upon and while holding-thelever in this position, which is shown in Fig.3, I push the inner barrelmember 21 forwardly to its finalposition within the barrel 15, thisaction carrying the seats or bearings 24 and the trunnions 25forwardly'from belowthe inc which is depressed by the lever 26 andlifted recesses'or crossslot20 to below the solid portions of the barrel15 at the forward end of the slot 16, said trunnions 25then beingpivotally held between'the bearings or seats Q4'fand the adjacentsurface above them of the barrel 15," as 'shown in igs. 1,2 and 7 Inthi'sf nanner of assembly it will be .seen

that the parts maybe very quickly brought.

togetherand the lever 26' secured in position without theuse of rivetsor like means. After thelever 26 hasbeen properly secured, said leverWill be tu'rned downwardly against-the outer surface of the barrel 15and into, a s-far as maybe, the slot 16 therein, as shown in Fig. 1.When the lever 26 isfturned downwardly against the barrel 15, the spring28 will flex upwardlyand carry the presser bar 27 upwardly totheposition shown in Fig. '1, in which position 'the spring and barallowabundant space forthe inkb ag 19. I i v I he plug 17 has an innerthreaded section 331and frornthis section 33 extends a nipple 34 whichreceives the forward end of the rubber bag 19, as shown in- Fig. 2. Theforward end of the barrel 15 has a thread 35 formed thereon and thisthread engages the threaded section of the plug 17, the barrel 15thusbeing connected with the plug 17 by screw threads.

The forward portion of the pen structure is adapted to receive aprotecting cap 36,

which is formed from a sheet metalltub'e and isopen atone end to slipupon the pen structure and closed at its outer end by a metal disk 37.Within the cap 36 isa hard rubber sleeve 38 which has a friction fitwithinthe cap 36 and is open at both ends and near itsouter end isannularly recessed, as at 39, to stand clear of the inner walls of thecap 36. Adjacent to its inner end the sleeve38 is annularly recessed andthreaded to receive the adjacent threaded endof a metalsleeve .40, whichis inserted into the body of the cap 36 with the sleeve 38, the sleeve40 preferablybeing screwed upon the sleeve 38 so that both sleeves may,vas a unitary structure, be. inserted into the body of the cap 36,wherein said parts are sta-' tionary. The outer end of the sleeve 40 isthreaded, as at 41, and into this thread the thread 35 on the barrel 15is; screwed when itis desired to secure the cap 36 in position over thepen point 18. The thread 35 on the barrel 15 thus serves to secure theplug 17 in place and also as means for engaging the thread 41 on thesleeve 40 and thereby securing the cap 36 detachably over the forwardportion of the pen structure. When the forward end of the barrel 15 isscrewed into the sleeve 40, the forward annular edge of the plug 17abuts against the rubber sleeve 38, as shown in Fig. 1, and thereby afluid-tight joint is formed between said plug and sleeve.

inner side. of the cap 36' and is held in place without riveting, orthe, like. The outerend of the cap .36 is recessed inits-edge portion,as at 44, and this is for the purpose of admitting the sleeve 43 to therecess 39 around the sleeve 38 and to permit the tongueportion of theclip to extend laterally from the .cap36 andalong the side ofsaid cap.The outer endof the cap 36 is spun "over. upon the disk37, as shown inFig. 1, and prior to the spinning. or flanging overof .the edges of thecap 36;uponfthe disk 37-.Iintroduce the sleeves .38, 40 and'the plate 43of the clip 42 .into the cap Y36, and then'close the outer, endIofthecapby inserting the disk 37;.in position and spinningover the edge portions.of the end -of the cap upon said disk. the recess 44' in the end of'thecap permitting me'to followv this practice.= i e VVhatI claim as myinvention anddesire to secure by LettersPatent, is

1. A fountain pencomprising anexterior barrel or casing-member'having atitsforward end a plug andpen and containinga collapsible bag for holdingink and in cornmunication with the chamber of said plug for feeding thepen, an elongated bar engaging the exterior upper side-of. said bag, anelongated spring to which the forward end of said bar is secured andwhich has a downward return bend at its rear end, an inner barrel memberinsertible intoisaid exteriorbarrel member from the rear end thereof andto which the end of said bend of the spring is secured, saidfinnerbarrel inernber carrying said spring and bar and said bend flexingithebody of. the spring up- 'wardlyto position said bar horizontally withrelation to said bag, and a pivoted lever on the casing having anouterflmemberffor manual operation and aninner memberto be turneddownwardly against said bar for depressing the same against said bag inopposition to the force of said spring, said inner barrel member havingat its lower side an integral upwardly pressed loop to receive and serveas a clip for securing the end of said springbend and at its upper sidea longitudinal slot through which the saidv lever operates.

2. A fountain pen comprising an exterior barrel or casing member havingat its forward end a plug and pen and containing a collapsible bag forholding ink and in communication with the chamber of said plug forfeeding the pen, an elongated bar engaging the exterior upper side ofsaid bag, an elongated'spring to "which the forward end of said bar issecuredand which has a downward return bend at its rearend, an innerbarrel member insertible into said ext'erior barrel member and to whichthe end of said "bend of the spring is secured, said inner 'barrelmember carrying said spring and bar and said bend flexing the body ofthe spring upwardly to position said bar horizontally with relation tosaid bag, and a pivoted lever having an outer member for manualoperation and an inner'member to be turned downwardly against said barfor depressing the same against said bag in opposition to the force ofsaid spring, said lever having laterally extending trunnions, and'saidinner barrel member being longitudinally slotted and having bearings forsaid 'trunnions below solid portions of the v uter'barrel member, saidouter barrel memher being longitudinally slotted 'to admit the saidlever and cross slotted to permit said trunnions to be lowered to saidbearings when the inner barrel member is arrested during its insertioninto the outer barrel member with its'longitudinal slot below the alongitudinal slot of saidouter barrel member' and itsbearings below thecross-slot 0 said outer barrel member. V I

A fountain penofself-fillingtype containing an ink-bag and resser-bartherefor,'comprising anouter barrel member having a longitudinal slotand a cross-slot transverse of said longitudinal slot, an inner member"insertible endwise into said outer -'m'ember andhaving a longitudinalslot to below the longitudinal slot of said outer 1 member and also'bearings'at opposite sides off its slot tobe arrested-belowsaid'crossslot during the insertion of said inner member ,andthen movedforwardly beyondthe longitudinal slot of saidouter member and belowsolid portions of said outer member,

"and a ."pivotied operating lever for said bar having an outerim emberfor manual opera tion, flan inner ;member to depress said bar andtrunnionsfadapted "to be lowered through said 'crossslotand seated onsaid bearings when the latter are arrested below said bar having .anouter member for manual operation, an inner member to depress said bar:and trunnions adapted to be lowered throughisaid cross-slotand seatedonsaid member, and a pivoted operating lever for 1 bearingswhen the latterare arrested below said .cross slot and then to be carried on thebearings below solid portions of the outer member on the furthermovement of said inner member to its final position.

5. A fountain pen of selffilling type coni raining an ink-bag and.resser-bar therefor,

comprising an outer barrel member having a cross slot, an inner memberinsertible endsides thereof to bearrested below s'aidcross slot "duringthe insertion of said inner memher into said outer member and then movedforwardly below solid-portions of said outer member, and a pivotedoperating lever for said barhaving; an! outer member for manualoperatlon, an mner member to depress said bar and trunnionsadapted to belowered through said cross slot and seated on Said bearings when-thelatter are arrested below said'cross-slot and then to becarried on'thebearings below solid portions of the outer member on thefurther'movement of said inner member to its final position, said innerwise into said outer member and having a longitudinl slot and bearingsatopposite member being'tubular-and carrying said'bar 1 and having onits outer end a head whose forward annular edges engagethe rearend "ofsaid outer barrel member andclose the same. r V

"Signed'at N'ew York city, in the county of New York and State of NewYOIk,=ll1= i$ 4th day of September, A. '13., 1923. o

- ABRAHAM POLLAK.

